Como devo utilizar: 'ocean inside' ou 'inside ocean'?

Hello =) Para dizer 'Dento do oceano'' acho que a melhor opcão seria> ''Inside the ocean''. e ''The ocean inside'' significa ''O oceano de dentro(visto de dentro)..
Hope I haven't misunderstood your question. Is that you wanna know? Any doubt, you may ask me

Perhaps you want to create a nick to you in a Forum, then you want to make it ocean-related.
What about ''Ocean living being"? or Ocean life, or Ocean organism?
Could be also "marine life", "marine living being" etc.

And others...these are just some doable ideas.

By the way, "sea creature" would be a good nickname.

Na real,queria saber mesmo a diferença dos dois termos,e seus significados,apenas como ocean inside e inside ocean...

Mas agradeço a vocês todas as respostas!! Se puderem tentar mais uma vez me ajudar,agradeceria novamente ^^

Abraços a todos!Boa semana!

I reread your first post and, on second, thought you might be glad to know this one: mar adentro = out in the sea.

I swam out in the sea as far as I could,...
(source: Bab.la)

"Oceano adentro" would not be a bit unusual way to speak in Portuguese. Because ocean is a word used to refer to big bodies of waters, more often than not. Examples: Indian Ocean, Pacific Ocean etc... Anyway, by ship one could get that far.